Autosprint, however, doubts Red Bull is using some kind of 'traction control', but rather a clever engine mapping that mimics the behaviour of exhaust-blown diffusers in the wake of the FIA's clampdown in that area.

British journalist James Allen, writing on his blog, agrees: "Rather than traction control, some kind of mapping to blow into the exhaust within the rules is more likely".

Toto Wolff, Mercedes' competition boss, is quoted by Speed Week: "In this form, Sebastian could win all the remaining races of the season."

That could lead to more booing on the podium.

Pirelli boss Paul Hembery told the German newspaper Bild: "Sebastian will only be popular again when he loses.

"He will have to stand up in defeat, laugh and be humble. Nobody likes a bad loser.

"Maybe we can help him out by supplying him with only three tyres?" he joked.